BiTel

import ru.bitel.bgbilling.modules.inet.api.server.bean.InetDeviceMap;
import ru.bitel.bgbilling.modules.inet.api.server.bean.InetDeviceMap.InetDeviceMapItem;

private InetDeviceMap inetDeviceMap;

public void init()
{
  this.inetDeviceMap = InetDeviceMap.getInstance( moduleId );
}

public InetDevice getParentDevice( InetDevice device )
{
  InetDeviceMapItem inetDeviceItem = this.inetDeviceMap.get( device.getParentId() );
  if( inetDeviceItem == null )
  {
    return null;
  }

  return inetDeviceItem.getDevice();
}